1699420801 has 8 divisors (see below), whose sum is σ = 1855217000. Its totient is φ = 1547206272.

The previous prime is 1699420771. The next prime is 1699420813. The reversal of 1699420801 is 1080249961.

It can be written as a sum of positive squares in 4 ways, for example, as 50979600 + 1648441201 = 7140^2 + 40601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1699420801 - 2¹³ = 1699412609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1699420831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894426 + ... + 896323.

It is an arithmetic number, because the mean of its divisors is an integer number (231902125).

Almost surely, 2^1699420801 is an apocalyptic number.

It is an amenable number.

1699420801 is a deficient number, since it is larger than the sum of its proper divisors (155796199).

1699420801 is a wasteful number, since it uses less digits than its factorization.

1699420801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790835.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1699420801 is about 41224.0318382373. The cubic root of 1699420801 is about 1193.3476345172.

It can be divided in two parts, 1699 and 420801, that added together give a square (422500 = 650²).

The spelling of 1699420801 in words is "one billion, six hundred ninety-nine million, four hundred twenty thousand, eight hundred one".